Once again I am not defending but being TUV certified means your management process is certified it doesn't have a thing to do with the strength of your wheels. And wheels being load tested can mean FEA as that is a test. The quotes you posted say nothing about all wheels being load tested by TUV.
I agree that it could be misleading. I asked a company who shows off their TUV certificate if every wheel they make is physically tested or just FEA about 2 weeks ago and they never responded to my post but responded to others. This was on another forum.
So in saying that all wheel companies are posting misleading stuff. Sometimes it's not what they say its what they don't say.